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332 articles for “retting”
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Three-Level Interleaved Boost Converter with Irradiance Adaptive Controller for Solar Power Utilization
Abstract: Solar energy conversion through photovoltaic is a rapidly growing source of green power supply. Therefore, improving the efficiency of PV system is considered as an important factor in supporting this trend. However, this concerns not only the improvement of PV cells, but also the efficiency of the power electronics circuits and the controls associated with them. Also, the PV modules are operated at low voltage levels, therefore, large voltage boosting …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 4, Issue 2, 2018 · pp. 1–8 Read article
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Efficient Control Strategies for Multiphase Interleaved Boost Converter in Photovoltaic Systems: A Modeling and Simulation Approach
Abstract: The main goal of this project is to create a Multiphase Interleaved boost converter with a solar module using the Maximum Power Point Tracking (MPPT) technique. Thus, the PV module is first examined in MATLAB with SIMULINK software. Just one diode here, a photovoltaic model is applied. The two environmental factors that have the biggest impact on PV cell properties are temperature and solar radiation. A three-phase interleaved boost converter …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 9, Issue 2, 2023 · pp. 29–48 Read article
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A Star Shape Wideband Antenna for Microwave Energy Harvesting
Abstract: The paper proposes a Wideband star shape Microstrip Antenna, with particularly intended to wide bandwidth, small size for utilizing in microwave energy harvesting system. The antenna simulated with half ground is having a lower VSWR (Voltage Standing Wave Ratio) of 1.1 at a design frequency of 3.55 GHz, and a 2:1 VSWR bandwidth of 3.267GHz achieved. The structure of antenna is finally decided after analyzing various dimensional effects on bandwidth, …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 1, Issue 1, 2015 · pp. 27–31 Read article
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A Multiband Ultra Wideband Antenna for Wireless Applications
Abstract: ABSTRACTThis paper proposes a compact and low-priced antenna that operates in Ultra Wide Band (UWB) at X-band and C-band for short-range communication applications. The frequency band ranging 3.1 GHz to 10.6 GHz is allocated to ultra-wideband. The values of VSWR and return loss for this antenna are less than 1.5 and -10db respectively. The L shaped slot create a band at 10.022 GHz and the ring-shaped patch create bands at …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 6, Issue 1, 2020 · pp. 1–7 Read article
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Design of Novel Flexible Antenna Covering with Polyethylene Substrate
Abstract: In this article, novel flexible antenna is simulated under CST Software 2019. The new thing introduce in this research is that after designing flexible antenna on textile substrate, polyethylene substrate is used to cover the front of the flexible antenna. Is this done because when we wear flexible antenna at raining season then it gets wet which change all the properties and Charactertics of flexible antenna. Also, the dielectric constant …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 8, Issue 1, 2022 · pp. 25–33 Read article
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Using Leather as a Substrate in Rectenna for Devices Consuming Minimal Power
Abstract: This study examines a lightweight, modular receiving wire for power-efficient devices. Despite being compact in size, the suggested receiving wire possesses a high level of directivity and a high transfer rate. Because it is flexible, wearable, tiny, takes little thought, and has amazing characteristics like low dielectric consistency, low misfortune digression, and increased proficiency, polystyrene froth is employed as a substrate. The receiving wire's boundaries, such as return unfortune, gain, …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 8, Issue 1, 2022 · pp. 34–39 Read article
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Impact of Annealing on Structural and Surface Properties of Nanostructured ZnO Thin Films
Abstract: ZnO thin movies with various grain size were developed on undefined quartz substrate utilizing turn covering technique. We have announced the impact of toughening temperatures on the basic and surface properties of ZnO thin movies. The surface properties were described by AFM. From XRD investigation, it can be seen that the FWHM diminishes with an expansion in strengthening temperature from 500 to 575ºC which is reflected in the expansion in …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 1, 2017 · pp. 33–37 Read article
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Porous Silicon and its Nanoparticles: A Theoretical Study
Abstract: It is very simple and cost consuming technique of fabrication of porous silicon film over silicon substrate and synthesizing the porous silicon and silicon nanoparticles. The etch reactions in RIVPSE process forms the porous structures without need of complex and expensive equipments. The luminescent porous film can be fabricated using this sample technique with any cost effecting methods such as extra energy excitation like plasma or ultraviolet photon and additional …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 1, 2019 · pp. 14–18 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Study of Balanced Energy Absorbing Material for Structural Applications.
Abstract: The ballistic execution of "smart-sized" S2-glass fiber fortified epoxy was assessed in correlation with network perfect, framework semi-good and lattice contradictory estimated materials. The smart size is a detailing intended to give rate-subordinate conduct. The brilliant estimated material was appeared to show rate subordinate changes in interlaminar shear quality and mode I interlaminar break sturdiness testing; the ballistic execution of the material was enhanced just marginally over perfect measured materials. …
Published in International Journal of Energetic Materials · Vol. 4, Issue 2, 2018 · pp. 34–42 Read article
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Larvicidal Activities of Biosynthesized Zinc and Nickel Nanoparticles using Allium sativum (Garlic) oil on Anopheles spp Larvae Yobe State, Nigeria
Abstract: Emergence of insecticide resistance and their harmful effects on non-target organisms and environment has necessitated an urgent search for development of new and improved mosquito control methods that are effective and safe for non-target organisms and the environment. The present study aims to assess the larvicidal activities of biosynthesized zinc and Nickel Nanoparticles using Allium sativum (garlic) oil against the larvae of malaria Anopheles spp. The garlic oil extracted was …
Published in International journal of Nanobiotechnology · Vol. 7, Issue 2, 2021 · pp. 1–9 Read article
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Impact of Nanotechnology in Textile Industry: A Review
Abstract: The preface of nanotechnology has revitalized several sectors, including the cloth assiduity. The current state of nanotechnology operation in fabrics is estimated, with a focus on enhancing different textile rates. Because of the unique features of nanoparticles and nanofibers, they may be utilized to produce fabrics with superior mechanical strength, chemical resistance, water repellence, antibacterial capabilities, and a plethora of other parcels that aren't possible with conventional accoutrements. Advancements in …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 2, 2021 · pp. 1–7 Read article
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A Brief Discussion on Plastic Wastes Sortation Procedures
Abstract: Recycling plastic is the procedure of retrieving waste plastic products and reprocessing the material into similar or sometimes completely different form of products. As an example, melting down soft drink bottles, boxes and then casting them as plastic chairs and tables. According to the ImpEE project of University of Cambridge, 3 million tonnes of waste plastic were produced a year (2005) in UK and among those 21.3% are produced from …
Published in International Journal of Composite and Constituent Materials · Vol. 4, Issue 2, 2018 · pp. 1–7 Read article
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A Review on Processing of Waste PET (Polyethylene Terephthalate) Plastics
Abstract: Solid waste is essentially waste produced in our homes, businesses and industrial sources. Globally waste production is growing in volume and in toxicity. Plastic waste is a nature threat that is of great concern to the researches to refuse and reuse. The man-made systems emphasize the economic value of materials and energy where production and consumption are the extensive economic actions. Such systems are a threat to the environment as …
Published in International Journal of Polymer Science and Engineering · Vol. 1, Issue 1-2, 2015 Read article
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Aerogel to Study Nano-composite
Abstract: This article has linked to economic aerogel utility of build as by apply of thermal insulation from high and low temptation than usual subscription. Aerogel for building construction always esteemed to be damp proof reticulated architected formation. Space mission is inclusive afterwards as an energy absorber. Typified composite form mostly subjected to class as notified form after solidification on drying gelatinous composes from carbon, clay and silica. Multifunctional material characteristics …
Published in International Journal of Polymer Science and Engineering · Vol. 7, Issue 1, 2021 · pp. 1–10 Read article
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Studies on Effect of Organoclay and Melamine Powder on Flexible Polyurethane Foam for Aerospace Applications
Abstract: Flexible polyurethane foam (PU) is a suitable candidate for various aerospace applications like acoustic insulation due to its high flexibility, ease of processing, etc. But one of the major disadvantages of this foam is low flammability resistance. The aim of this study is to improve the flame resistant properties of flexible PU foam through incorporation of additives. Flexible polyurethane foams were synthesized through one shot process with organically modified nanoclay …
Published in International Journal of Polymer Science and Engineering · Vol. 7, Issue 2, 2021 · pp. 15–26 Read article
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Lean Manufacturing
Abstract: An important goal of lean manufacturing is to speed up response times from suppliers and consumers as well as times spent in the production system. It has a tight relationship to another idea known as just-in-time manufacturing (JIT manufacturing in short). Just-in-time manufacturing prioritises productivity, effectiveness, and waste reduction for the producer and supplier of goods in an effort to match output to demand by only supplying items that have …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 23–26 Read article
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Analysis & Simulation Of Local Area Network By Using Packet Tracer
Abstract: In the modern period, we use PCs for all of our personal and professional needs. The majority of organizations rely on their correspondence, organisation, mechanisation, internet marketing solutions, and other processes to function as efficiently as possible. The best most fundamental PC system, according to many organisations, is LAN, which may be used to connect systems in different geographical locations. A LAN enables the efficient cost sharing of infrastructure for …
Published in International Journal of Computer Aided Manufacturing · Vol. 8, Issue 2, 2022 · pp. 32–37 Read article
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Identification of diesel engine defects of corvette type naval ships
Abstract: One of the main machineries of a ship is the high-speed diesel engine, which is used for main and auxiliary propulsion systems. Due to the high cost of these assets, their operational reliability needs to be optimally ensured for efficient and effective exploitation of these machineries. The current existing flow chart of registering diesel engine defects has been reviewed and a new methodology, which is more systematic and reliable has …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 1, 2017 · pp. 1–13 Read article
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Experimental Analysis on Generation of Electricity Through Braking System (Regenerative Braking System)
Abstract: In conventional braking system the motion is retarded or stopped by absorbing kinetic energy by friction, by making the contact of the moving body with frictional rubber pad (called brake liner) which causes the absorption of kinetic energy, and this is wasted in form of heat in surroundings. Each time we brake, the momentum of vehicle is absorbed that it has gained by it and to re-accelerate the vehicle. As …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 4, Issue 1, 2018 · pp. 11–24 Read article